Flash Flood in Spencer County, Indiana

Roads were submerged south of Richland City, including portions of CR 150 South and CR 900 W at W 70 N. Radar estimated rainfall was 2-3 during the afternoon, with most of the rain falling within 90min.

As high pressure slowly crept northward towards the Quad State region, ridging remained over the middle Mississippi River Valley. A slow-moving MCS moved through the northeastern half of the Quad State midday to near sunset. CAPE rose to 1000-2000J/kg in Southwest Indiana with effective bulk shear around 30kts. Extremely high moisture content with precipitable water values of 2.25in resulted in torrential rainfall rates in Southwest Indiana. Each of the six counties in Southwest Indiana reported flash flooding. In Gibson County, street flooding occurred in Francisco mid-late morning, with a gage reporting 4.25in of rain 3 miles NW of Francisco. Pike County had some of the longest lasting flooding as a widespread area saw 2-3.5 during the morning hours. Spencer County received 2.5-4 of rain in and around Rockport, with flooding there lingering towards sunset. More isolated flooding issues occurred in Posey, Vanderburgh, and Warrick Counties with Evansville area flooding generally on the north and east sides of the airport.